A hiker uses a wooden walkway along the Alaka'i Swamp Trail on his return from the Kilohana Lookout, Kaua'i. The Alaka'i Swamp is arguably the highest-elevation swamp on Earth, ranging from 3,500 to 4,000 feet in elevation.

Hiker on a Wooden Walkway Along the Alaka'i Swamp Trail, Kaua'i

Hiker on a Wooden Walkway Along the Alaka'i Swamp Trail, Kaua'iA hiker uses a wooden walkway along the Alaka'i Swamp Trail on his return from the Kilohana Lookout, Kaua'i. The Alaka'i Swamp is arguably the highest-elevation swamp on Earth, ranging from 3,500 to 4,000 feet in elevation.